Buggy code:
public class User implements Comparable < User > { private String mAccount ; private String mAddress ; private int mAuthtype = 0 ; private Date mBirthday ; private String mStringBirthday ; private String mEmail ; private String mFax ; private long mUserId ; private String mJob ; private String mMobile ; private String mNickName ; private String mSex ; private String mSignature ; private String mTelephone ; private String mCommentname ; private String mCompany ; private String mDepartment ; private boolean isCurrentLoggedInUser ; private NetworkStateCode mResult ; private User . DeviceType mType ; private User . Status mStatus ; private String mName ; private Set < Group > mBelongsGroup ; private String mAvatarPath ; private String abbra ; public boolean isShowDelete ; private static HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat ( ) ; private boolean isDirty ; public User ( long mUserId ) { } public User ( long mUserId , String name ) { } public User ( long mUserId , String name , NetworkStateCode mResult ) { } public User ( long mUserId , String name , String email , String signature ) { } private void initAbbr ( ) { } public boolean isCurrentLoggedInUser ( ) { } public void setCurrentLoggedInUser ( boolean isCurrentLoggedInUser ) { } public long getmUserId ( ) { } public void setmUserId ( long mUserId ) { } public void setmCommentname ( String mCommentname ) { } public String getmCommentname ( ) { } public NetworkStateCode getmResult ( ) { } public void setmResult ( NetworkStateCode mResult ) { } public String getName ( ) { } public void setName ( String mName ) { } public String getmEmail ( ) { } public void setEmail ( String mail ) { } public String getSignature ( ) { } public User . DeviceType getDeviceType ( ) { } public void setDeviceType ( User . DeviceType type ) { } public void setSignature ( String signature ) { } public Set < Group > getBelongsGroup ( ) { } public void setmBelongsGroup ( Set < Group > belongsGroup ) { } public String getAddress ( ) { } public void setAddress ( String mAddress ) { } public String getMobile ( ) { } public void setMobile ( String mCellPhone ) { } public String getCompany ( ) { } private String loadCompany ( Group g ) { } public void setCompany ( String mCompany ) { } public String getDepartment ( ) { } public void setDepartment ( String mDepartment ) { } public String getSex ( ) { } public void setSex ( String mGender ) { } public Date getBirthday ( ) { } public String getBirthdayStr ( ) { } public String getmStringBirthday ( ) { } public void setmStringBirthday ( String mStringBirthday ) { } public void setBirthday ( Date mBirthday ) { } public String getTelephone ( ) { } public void setTelephone ( String mTelephone ) { } public String getJob ( ) { } public void setJob ( String mJob ) { } public User . Status getmStatus ( ) { } public String getArra ( ) { } public void updateStatus ( User . Status mStatus ) { } public String getFax ( ) { } public void setFax ( String fax ) { } public int getAuthtype ( ) { } public void setAuthtype ( int authtype ) { } public String getAccount ( ) { } public void setAccount ( String acc ) { } public void addUserToGroup ( Group g ) { } public String getNickName ( ) { } public void setNickName ( String nickName ) { } public boolean isDirty ( ) { } public void updateUser ( boolean dirty ) { } public Group getFirstBelongsGroup ( ) { } public String getAvatarPath ( ) { } public void setAvatarPath ( String avatarPath ) { } private Bitmap avatar ; public Bitmap getAvatarBitmap ( ) { } private Bitmap loadAvatarBitmap ( String mAvatarPath ) { } public void setAvatarBitmap ( Bitmap bm ) { } @ Override public boolean equals ( Object obj ) { } @ Override public int hashCode ( ) { } @ Override public int compareTo ( User another ) { } public String toXml ( ) { } public static List < User > fromXml ( String xml ) { } private static String getAttribute ( Element el , String name ) { Attr atr = el . getAttributeNode ( name ) ; if ( atr != null ) { <START_BUG> return atr . getValue ( ) ; <END_BUG> } return null ; } public enum DeviceType { CELL_PHONE ( 2 ) , PC ( 1 ) , UNKNOWN ( ( - 1 ) ) ; private int code ; private DeviceType ( int code ) { } public int toIntValue ( ) { } public static User . DeviceType fromInt ( int type ) { } } public enum Status { LEAVE ( 2 ) , BUSY ( 3 ) , DO_NOT_DISTURB ( 4 ) , HIDDEN ( 5 ) , ONLINE ( 1 ) , OFFLINE ( 0 ) , UNKNOWN ( ( - 1 ) ) ; private int code ; private Status ( int code ) { } public int toIntValue ( ) { } public static User . Status fromInt ( int status ) { } } }

Fix:
return EscapedcharactersProcessing . reverse ( atr . getValue ( ) ) ;